Home / 13,388.78-20,079.27-4,026.38

Finding the Fourth Proportional to 13,388.78, 20,079.27 and 4,026.38

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Solution

The fourth proportional to 13,388.78, 20,079.27 and 4,026.38 is: 6,038.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,388.78 : 20,079.27 = 4,026.38 : x
  2. Step 2: Convert to fraction form
    13,388.78/20,079.27 = 4,026.38/x
  3. Step 3: Cross multiply
    13,388.78x = 20,079.27 × 4,026.38
  4. Step 4: Simplify right side
    13,388.78x = 80,846,771.14
  5. Step 5: Solve for x
    x = 80,846,771.14/13,388.78
  6. Step 6: Final answer
    x = 6,038.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.